Troubleshooting - hestan GRS 24 Serie Mode D'emploi

TROUBLESHOOTING

If the unit appears to be malfunctioning, read through the OPERATION section of this manual first.
If the problem persists, check this troubleshooting section to see if you can refer to the cause and
remedy of the problem and resolve it without a service call.
EN
Never attempt to repair or perform maintenance on the unit until the main electrical power has been
disconnected!
DANGER
RISK OF FIRE OR EXPLOSION - FLAMMABLE REFRIGERANT USED.
owners guide before attempting to service this product. All safety precautions must be followed. To
be repaired by trained service personnel only. Do not puncture refrigerant tubing.
No interior light.
Light stays on when door switch
is closed.
Noisy operation.
LED Controller display is
flashing "P1"
LED Controller display is
flashing "P2"
LED Controller display is
flashing "HA"
LED Controller display is
flashing "LA"
LED Controller display is
flashing "dA"
Unit is not running.
14
©2021 Hestan Commercial Corporation
Problem
LED board is inoperable.
Manual light switch is on.
Door is not making contact with the
door switch.
Soft sounds from compressor, fan
motor and valves heard.
"Crackling" sound during defrost.
Thermostat probe has failed.
Evaporator probe has failed.
Internal compartment has exceeded
the high temperature alarm preset
value for over 30 minutes.
Internal compartment has exceeded
the low temperature alarm preset value
for over 30 minutes.
Door is open.
No power is going to the unit.
Condenser is dirty.
Cause
Contact Hestan Customer Care.
Turn manual light switch off.
Make sure the door closes tightly.
Normal operation.
Normal operation.
Contact Hestan Customer Care.
Contact Hestan Customer Care.
* Make sure the door is completely closed.
* Check the door gasket seal. Replace if
necessary.
* Check the condenser and clean it if
necessary.
* Make sure the louvered plate is
unobstructed. If surrounding ambient
temperature has recently changed
dramatically, the compartment may be
affected.
* Make sure the interior light is off.
* Warm product was recently placed in the
cabinet. Wait 24 hours for the product to chill
and then recheck the temperature.
* Make sure the door is completely closed.
* Check the door gasket seal. Replace if
necessary.
* If the surrounding ambient temperature
has recently changed dramatically, the
compartment temperature may be affected.
* Make sure the door is completely closed.
* Home circuit breaker was tripped. Reset the
circuit breaker.
* ON/OFF keypad is turned off. Turn it on.
* If it is a Dual-Zone model, check the
DualZone power switch (see page 7).
Clean the condenser.
Consult repair manual/
Solution