Troubleshooting - Daikin EKHHE200CV3 User, Installation, And Maintenance Manual

Parameter Description
Threshold on inlet temperature for evaporator
P49 EC or AC with double speed blower speed
setting
P50 Antifreeze lower water temperature setpoint
P51 Evaporator EC blower higher speed setpoint
P52 Evaporator EC blower lower speed setpoint
(1) = NOT USABLE FOR THIS DEVICE
(2) = ONLY FOR MODELS "EKHHE200PCV3, EKHHE260PCV3"

9. TROUBLESHOOTING

CAUTION: Do not attempt to repair your appliance Yourself.
The following checks are reserved for qualified personnel only.
Fault
The equipment does not switch on
Water cannot be heated via the heat pump in
ECO or AUTOMATIC mode
The heat pump remains on without ever
stopping
Water cannot be heated via the integrated
heating element in AUTOMATIC mode
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Range
10÷40°C
0÷15°C
60÷100%
10÷60%
Recommended action
• Check that the product is actually powered by the mains.
• Disconnect the equipment then reconnect it after a few minutes.
• Check the power cable inside the product.
• Check that the fuse on the power board is intact. If not, replace it with an IEC-60127-
2/II certified time-delay 5 A fuse.
• Switch the equipment off, then switch it on again after a few hours.
• Disconnect the equipment from the mains, drain part of the water contained in the
tank (approx. 50%) then refill it and switch the equipment on again in ECO mode.
• Without drawing hot water from the product, check that in a few hours heating via
heat pump occurs positively.
• Switch off the equipment and check the safety thermostat of the heating element
inside the equipment and reset it if necessary. Then switch on the equipment in
AUTOMATIC mode.
• Disconnect the equipment from the mains, drain part of the water contained in the tank
(approx. 50%) then refill it and switch the equipment back on again in AUTOMATIC
mode.
• Access the installer menu and increase the value of parameter P32, e.g. to 7°C.
• Check that the heating element safety thermostat has not intervened (see 9.2)
Default
25°C
12°C
65%
40%
User, Installations and Maintenance Manual
Notes
Modifiable
Modifiable
Modifiable
Modifiable