TROUBLESHOOTING FOR ACS CHAMBERS

The machine does not start - Challenge Temperature/Humidity Test Chambers

Probable Reason	Solution
There is no power supply from the main.	Check and proceed accordingly.
The main switch is pointing to OFF.	Turn on the main switch.
The START / STOP switch is pointing to STOP.	Turn on the START / STOP switch.
A mistake in the RUN programming.	Consult KEYKRATOS™ software and/or the WINKRATOS™ software handbooks and proceed accordingly.
Alarm signal on the display.	Check the description of the type of alarm on the LCD display and eliminate the cause.
Some other reason not mentioned above.	Call the service department for assistance.

The equipment does not reach the set temperature - Challenge Temperature/Humidity Test Chambers

Probable Reason	Solution
Error in setting of set point.	Check and modify.
There is too much material in the test chamber.	Reduce the quantity.
The test material prevents correct air circulation.	Place the material so that air can circulate through the intake and outlet openings.
The test material dissipates too much heat.	Check and reduce the load that dissipates the heat according to the technical specifications of the chamber.
The door is not shut correctly.	Check that nothing is preventing it from closing.
The cooling system is not working correctly (continual request for COLD, the compressor stops every now and again).	Check that the condenser fan is working correctly, make sure that the condenser is clean and check that the ambient temperature of the premises does not exceed the value given in the specifications. If the equipment has a water condenser, check that the system has a sufficient water supply; if the system has a sufficient supply and the difference in temperature between the inlet pipe and the outlet pipe is very low or is non existent, this indicates that the condenser is blocked and has to be cleaned or replaced (the temperature difference can be measured by simply touching the pipes with your hand). If the above solution does not resolve the problem, contact the service department for assistance.
Continual request for COLD, the compressor works continuously.	There may be an accidental loss of coolant, contact the service department for assistance.

The machine does not reach the set temperature - Challenge Temperature/Humidity Test Chambers

Probable Reason	Solution
The cooling system is not working correctly (continual request for HOT, the temperature does not rise).	Check the maximum and minimum set temperature values on the hardware thermostat. If this does not resolve the problem, contact the service department for assistance.
The temperature adjustment system does not carry out the requests for hot or cold correctly.	Contact the service department for assistance.
The internal fan is not working.	Contact the service department for assistance.
Some other reason not mentioned above.	Contact the service department for assistance.

The machine does not reach the set humidity - Challenge Temperature/Humidity Test Chambers

Probable Reason	Solution
Error in setting of set point.	Check and modify.
The wet bulb gauze is dirty or badly positioned.	Check and reposition correctly or replace.
The wet bulb gauze is dry because there is no water in the supply pipe.	Contact the service department for assistance.
Error in temperature control. In this condition there is also an error in humidity control.	Follow the solutions given for The machine does not reach the set temperature.
The test material prevents air from circulating correctly.	Place the material so that air can circulate through the intake and outlet openings.
The test material dissipates too much heat.	Place the material so that air can circulate through the intake and outlet openings.
The door is not shut correctly.	Close the door correctly.
Continual request for DRY, (the dehumidification system is not working correctly).	Contact the service department for assistance.
The humidity adjustment system does not carry out the requests for humid or dry correctly.	Contact the service department for assistance.

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The machine is noisy - Challenge Temperature/Humidity Test Chambers

Probable Reason	Solution
The chamber is not resting correctly on the floor.	Check that the machine is on a level.
Contact with foreign bodies.	Check that foreign bodies, such as cartons or other structures are not touching the equipment thus causing vibrations during operations.
Fault in the mechanical parts.	Check that moving mechanical parts e.g. fans are not making a noise.
The chamber has been placed on a site with a lot of reverberations.	Contact the service department for assistance.

The light does not switch on - Challenge Temperature/Humidity Test Chambers

Probable Reason	Solution
Lamp burnt out.	Replace the lamp.
Faulty switch.	Contact the service department for assistance.

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The door does not open - Chambers equipped with electromagnetic lock (optional Gatekeeper® system)

Probable Reason	Solution
Card not memorized or scanning error.	Repeat card memorization procedure (see par. 8.5). If the door still does not open, call the service department for assistance.
Code disenabled.	Repeat card memorization procedure (see par. 8.5). If the door still does not open, call the service department for assistance.

The door does not close - Chambers equipped with electromagnetic lock (optional Gatekeeper® system)

Probable Reason	Solution
Switch 23 (see par. 9.1) unserviceable.	Check that the single-use switch is still good.

The door does not open when there is an electrical power outage - Chambers equipped with electromagnetic lock (optional Gatekeeper® system)

Probable Reason	Solution
First 3 hours: defective standby battery.	Call the service department for assistance.
Battery is discharged after a long lack of power.	Wait until the battery is recharged after the electrical power supply is turned back on.

The machine does not start - Discovery Temperature/Humidity Chambers

Probable Reason	Solution
There is no power supply from the main.	Check and proceed accordingly.
The main switch is pointing to OFF.	Turn on the main switch.
The ON/OFF switch is pointing to OFF.	Turn on the ON/OFF switch.
A mistake in the RUN programming.	Consult KEYKRATOS™ Plus software and/or the WINKRATOS™ software handbooks and proceed accordingly.
Alarm signal on the display.	Check the description of the type of alarm on the LCD display and eliminate the cause.
Some other reason not mentioned above.	Call the service department for assistance.

The equipment does not reach the set temperature - Discovery Temperature/Humidity Chambers

Probable Reason	Solution
Error in setting of set point.	Check and modify.
There is too much material in the test chamber.	Reduce the quantity.
The test material prevents correct air circulation.	Place the material so that air can circulate through the intake and outlet openings.
The test material dissipates too much heat.	Check and reduce the load that dissipates the heat according to the technical specifications of the chamber.
The door is not shut correctly.	Check that nothing is preventing it from closing.

The machine does not start - DCTC/P Corrosion Test Chambers

Probable Reason	Solution
There is no supply from the electrical mains.	Check and proceed accordingly.
The main switch is pointing to OFF.	Turn on the main switch.
Incorrect programming of TEST START.	Place the material so that air can circulate through the intake and outlet openings.
Alarm signal on the display.	Check the description of the type of alarm on the LCD display and eliminate the cause.
Some other reason not mentioned above.	Call the service department for assistance.

The equipment does not reach the set temperature - DCTC/P Corrosion Test Chambers

Probable Reason	Solution
Error in setting of set point.	Check and modify.
There is too much material in the test chamber.	Reduce the quantity.
The test material prevents correct air circulation.	Place the material so that air can circulate through the intake and outlet openings.
The lid is not shut correctly.	Check that nothing is preventing it from closing.
Malfunctioning of the cooling system (in the presence of the refrigerating unit) Continual request for COLD, the compressor stops every now and again.	Check that the condenser fan is working correctly, make sure that the condenser is clean and check that the ambient temperature of the premises does not exceed the value given in the specifications. If the above solution does not resolve the problem, contact the service department for assistance.
Continual request for COLD, the compressor works continuously.	There may be an accidental loss of coolant, contact the service department for assistance.
External environmental temperature too high or too low.	Bring the external environment temperature to an adequate value (as indicated in chapter 3.4).

The machine does not reach the set temperature - DCTC/P Corrosion Test Chambers

Probable Reason	Solution
The heating system is not working correctly (continual request for HOT, the temperature does not rise).	Check the maximum and minimum set temperature values on the hardware thermostat. If this does not resolve the problem, contact the service department for assistance.
The temperature adjustment system does not carry out the requests for hot or cold correctly.	Contact the service department for assistance.
Some other reason not mentioned above.	Contact the service department for assistance.

The machine does not reach the set humidity (only special apparatus) - DCTC/P Corrosion Test Chambers

Probable Reason	Solution
Error in setting of set point.	Check and modify.
The wet bulb gauze is dirty or badly positioned.	Check and reposition correctly or replace.
The wet bulb gauze is dry because there is no water in the supply pipe.	Contact the service department for assistance.
Error in temperature control. In this condition there is also an error in humidity control.	Follow the solutions given for The machine does not reach the set temperature.
The lid is not closed correctly.	Close it.
Continual request for HUMIDITY, (the humidification system is not working correctly).
Continual request for DRY, (the dehumidification system is not working correctly).	Contact the service department for assistance.
The humidity adjustment system does not carry out the requests for humid or dry correctly.	Contact the service department for assistance.

Water is not arriving at the humidifier - DCTC/P Corrosion Test Chambers

Probable Reason	Solution
Humidifier solenoid valve does not open.	Control solenoid valve or check electro level functionality.
Humidifier solenoid valve does open.	Lack of demineralised water or the water pressure is lower than the compressed air pressure.

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The humidifier is too full and water escapes from the sprayer - DCTC/P Corrosion Test Chambers

Probable Reason	Solution
Humidifier solenoid valve does not close correctly.	Disassemble the valve and clean it. It the valve seals are damaged, replace the valve.

Nebulised solution comes out the sprayer even when it shouldn't - DCTC/P Corrosion Test Chambers

Probable Reason	Solution
Non-humidified air solenoid valve or humidified air solenoid valve does not close correctly.	Disassemble one of the valves and clean. If the valve seals are damaged, replace it.

The machine is noisy - DCTC/P Corrosion Test Chambers

Probable Reason	Solution
The chamber is not resting correctly on the floor.	Check that the machine is on a level.
Contact with foreign bodies.	Check that foreign bodies, such as cartons or other structures are not touching the equipment thus causing vibrations during operations.
Fault in the mechanical parts.	Check that moving mechanical parts e.g. fans are not making a noise.
The chamber has been placed on a site with a lot of reverberations.	Contact the service department for assistance.

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SO₂ not introduced into the chamber - With option SO₂

Probable Reason	Solution
SO2 supply valve is closed.	Open the SO2 supply valve.
Internal SO2 valve (27) is closed.	Open the SO2 internal valve (27).
Internal SO2 solenoid valve does not open.	Contact the service department for assistance.
Other reason.	Contact the service department for assistance.

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SO₂ exhaust during the test - With option SO₂

Probable Reason	Solution
This lid is not locked.	Lock the lid.
The exhaust solenoid valve does not close.	Contact the service department for assistance.

The machine does not reach the low valve of desired humidity - DCTC 1200 P + VDA + NISSAN + RENAULT model

Probable Reason	Solution
Lack of compressed air.	Restore compressed air supply.
Other reason.	Check air filters and change them if necessary - please refer to the manual for dryers mod. HMC1.

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