Below are some of the questions frequently asked by our customers.
If your question cannot be answered here, pleaes don’t hesitate to contact us directly.

Technical

TR – TC CHILLERS LINE
1. DISPLAY DOES NOT LIGHT UP:
● No electricity:
– Check if the power supply cable is correctly connected to both the chiller and outlet.
– Check that the power switch is on “1” position.
– Check that the fuse is not burnt out.
2. LOW WATER COOLING:
● The water flow is insufficient:
– Check the correct operation of the pump (not included in the chiller package).
– Check if there is any constriction along the piping that prevents the regular flow.
● Dirty air filter
– Remove the air filter at the bottom of the chiller and wash it with lukewarm water. Do not use
objects that could damage the filter.
● Ambient temperature is too high
– Restore the optimal environmental conditions and verify that the air exchange is sufficient. The
maximum permissible ambient temperature is 38 ° C (100 ° F). The minimum distances between the
walls and the chiller are listed in the instruction manual.
● Obstructed ventilation grate
– Remove the obstruction from the ventilation grate or place the chiller in one most suitable
environment.
● Outgoing air from the ventilation grate at room temperature:
– Lack of gas in the compressor. Contact the TECO S.r.l area retailer.
● Lack of outgoing air from the ventilation grate:
– Defective ventilation system. Contact the TECO S.r.l area retailer.
3. LOW WATER HEATING:
● The water flow is insufficient:
– Check the correct operation of the pump (not included in the chiller package).
– Check if there is any constriction along the piping that prevents the regular flow.
● Defective heater:
– Contact the TECO S.r.l area retailer.
4. ON THE DISPLAY APPEARS THE MESSAGE “E1”:
● Defective water temperature probe:
– Contact the TECO S.r.l area retailer.

5. ON THE DISPLAY APPEARS THE MESSAGE “E2”:
● Defective overheating probe:
– Contact the TECO S.r.l area retailer.
6. ON THE DISPLAY APPEARS THE MESSAGE “AL1”:
● Dirty air filter:
– Pull out the air filter at the bottom of the chiller and wash it with lukewarm water. Do not use objects
that could damage the filter.
● Ambient temperature is too high
– Restore the optimal environmental conditions and verify that the air exchange is sufficient. The
maximum permissible ambient temperature is 38 ° C (100 ° F). The minimum distances between the
walls and the chiller are listed in the instruction manual.
● Obstructed ventilation grate
– Remove the obstruction from the ventilation grate or place the chiller in one most suitable
environment.
● Lack of outgoing air from the ventilation grate:
– Defective ventilation system. Contact the TECO S.r.l area retailer.
7. ON THE DISPLAY APPEARS THE MESSAGE “AL2”:
● The UV-C bulb is exhausted (this signal is present only if the sterilization system is installed):
– Replace the UV lamp, available by TECO S.r.l retailers.
8. JUST CHANGED THE UV-C LAMP BUT IT APPEARS STILL THE MESSAGE “AL2”:
● The UV-C bulb has not been reset:
– hold the “UV” button until you hear a ‘beep’. The UV-C lamp timer has now been reset.
9. ON THE DISPLAY APPEAR OTHER WARNINGS:
● Defective thermostat:
– Try to turn off and on the chiller.
– Contact the TECO S.r.l area retailer.
10. LOSS OF WATER FROM THE CHILLER:
● Water connections badly positioned:
– turn off the pump and check fittings installation
● The loss is in the upper part of the chiller:
– Water loss may indicate a leak in fittings
– Contact the TECO S.r.l area retailer.
● The loss is inside the chiller:
– Contact the TECO S.r.l area retailer.

12. SWITCHING ON THE CHILLER CAUSES A POWER OUTAGES:
● There is a short circuit in the electrical system of the machine:
– Contact the TECO S.r.l area retailer.
11. THE TEMPERATURE ON THE DISPLAY IS DIFFERENT FROM THE REAL WATER
TEMPERATURE:
● Water doesn’t circulate properly within the hydraulic circuit:
– Check probably constriction in the piping.
– Verify pump efficiency.
● Long uninsulated pipes:
– Shorten as much as possible the pipes and thermally isolate them.
● The water entering the aquarium is too close to the pump inlet:
– Lack of good water flow and mixing, change location of re-entry of the water in the aquarium.
● Not calibrated water temperature probe:
– Calibrate the water temperature probe as described in the paragraph PROBLEMS AND
SOLUTIONS of the instruction manual.

TK CHILLER LINE
1. DISPLAY DOES NOT LIGHT UP:
● No electricity:
– Check if the power supply cable is correctly connected to both the chiller and outlet.
– Check that the power switch is on “1” position.
– Check that the fuse is not burnt out.
2. LOW WATER COOLING:
● The water flow is insufficient:
– Check the correct operation of the pump (not included in the chiller package).
– Check if there is any constriction along the piping that prevents the regular flow.
● Dirty air filter:
– Pull out the air filter at the bottom of the chiller and wash it with lukewarm water. Do not use objects
that could damage the filter.
● Incorrect thermostat parameters setting:
– Reset all thermostat parameters to the default values (“HY” = 1; “ot” = 0; “o1” = db).
● Ambient temperature is too high
– Restore the optimal environmental conditions and verify that the air exchange is sufficient. The
maximum permissible ambient temperature is 38 ° C (100 ° F). The minimum distances between the
walls and the chiller are listed in the instruction manual

● Obstructed ventilation grate
– Remove the obstruction from the ventilation grate or place the chiller in one most suitable
environment.
● Outgoing air from the ventilation grate at room temperature:
– Lack of gas in the compressor.
– Contact the TECO S.r.l area retailer.
● Lack of outgoing air from the ventilation grate:
– Defective ventilation system.
– Contact the TECO S.r.l area retailer.
3. LOW WATER HEATING:
● The water flow is insufficient:
– Check the correct operation of the pump (not included in the chiller package).
– Check if there is any constriction along the piping that prevents the regular flow.
● Incorrect thermostat parameters setting:
– Reset all thermostat parameters to the default values (“HY” = 1; “ot” = 0; “o1” = db).
● Defective heater:
– Contact the TECO S.r.l area retailer.
4. ON THE DISPLAY APPEARS THE MESSAGE “P1”:
● Defective water temperature probe:
– Contact the TECO S.r.l area retailer.
5. THE TEMPERATURE ON THE DISPLAY IS DIFFERENT FROM THE REAL WATER TEMPERATURE:
● Water doesn’t circulate properly within the hydraulic circuit:
– Check probably constriction in the piping.
– Verify pump efficiency.
● Long uninsulated pipes:
– Shorten as much as possible the pipes and thermally isolate them.
● The water entering the aquarium is too close to the pump inlet:
– Lack of good water flow and mixing, change location of re-entry of the water in the aquarium.
● Not calibrated water temperature probe:
– Calibrate the water temperature probe as described in the paragraph 5.2.2 of the instruction
manual: Thermostat Settings.

6. LOSS OF WATER FROM THE CHILLER:
● Water connections badly positioned:
– turn off the pump and check fittings installation
● The loss is in the upper part of the chiller:
– water loss may indicate a leak in fittings.
– Contact the TECO S.r.l area retailer.
● The loss is inside the chiller:
– Contact the TECO S.r.l area retailer.