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AHP60 26/32 kW - Installation, Use and Maintenance
6. TROUBLESHOOTING
6.1. Troubleshooting of failures without error code
Problems encountered
HMI off with heat pump powered
up
Error 495 on Ecomod heat pump
control or heat pump unit does
not follow the Ecomod heat pump
control instruction
HMI blocked, cannot operate the
heat pump unit in backup mode
6.2. Error codes and diagnostic assistance
When the heat pump is at fault, it displays OFF and the alarm light is on. To see the error code, you must use PRG2
twice.
If an automatic reset fault appears, the heat pump restarts at the latest 6 minutes after the error code disappears.
In the event of a fault requiring manual reset, the fault is cleared by powering down the heat pump.
Code Description
E x t e r n a l
s a f e t y
E000
e l e m e n t
triggered
High
E001
pressure
error
52 / 74
Cause
Power supply phase reversal
No bus dialog between heat pump
controller and Ecomod Heat Pump
Control unit
heat pump unit in Ecomod heat
pump control slave mode
Cause
Activates the ON/OFF input
remotely, input open
The pressure sensor detects
a pressure that is higher than
the "high pressure setpoint"
(41.5 bar).
It is reset when the pressure
drops back down below 32.5
bars.
If the error occurs more than
3 times in an hour, it needs
to be reset manually
Solution
Reverse the cabling between 2 power
supply phases
Power up the heat pump.
Pair Ecomod heat pump control and
heat pump unit : leave the Ecomod heat
pump control powered up, switch the
heat pump unit power supply on / off for
a few seconds.
Cancel the Ecomod heat pump control and
heat pump unit pairing: power down the
Ecomod heat pump control or disconnect the
communication bus between the 2 then switch
the heat pump unit on / off for a few seconds.
Solution
•
Closes the digital input X15.1/15.2
•
Check if an error occurs even when the mode is
changed, by checking the operation of the 4 way
valve (4WV)
•
Check that the position of the unit respects the
minimum distances (see paragraph 3.4.2).
•
Check the electronic expansion valve EEV is
operating and attached correctly.
•
Check the fan operates correctly; check if the three-
phase power supply at fan input
•
Check the connection between the fan control cables
E1/GND and XC1 5.1/XC-1 5.2
00U07352250-A_ EN
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