110
ERROR
CODE
MALFUNCTION OR
PROTECTION
FAILURE CAUSE AND CORRECTIVE ACTION
Pd
High temperature protection of
refrigerant outlet temp of
condenser.
1. Heat exchanger cover is not removed. Remove it.
2. Heat exchanger is dirty or something is block on the surface. Clean the heat
exchanger or remove the obstruction.
3. There is no enough space around the unit for heat exchanging.
4. fan motor is broken, replace a new one.
Pb
Anti-freeze mode protection
Unit will return to the normal operation automatically.
PP
Water inlet temperature is higher
than water outlet in heating mode
1. The water inlet/outlet sensor wire connector is loosen. Reconnect it.
2. The
water
inlet/outlet
(
TW_in /TW_out
)
sensor is broken, Change a new
sensor.
3. Four-way valve is blocked. Restart the unit again to let the valve change the
direction.
4. Four-way valve is broken, change a new valve.
F1
DC generatrix voltage is too low
1. Check the power supply.
2. If the power supply is OK,and check if LED light is OK, check the voltage PN, if
it is 380V, the problem usually comes from the main board.
And if the light is OFF, disconnect the power, check the IGBT, check those
dioxides, if the voltage is not correct, the inverter board is damaged, change it.
3. And if those IGBT are OK, which means the inverter board is OK, power form
rectifier bridge is not correct, check the bridge.
(Same method as IGBT, disconnect the power, check those dioxides are
damaged or not).
4. Usually if F1 exist when compressor start, the possible reason is main board. If
F1 exist when fan start, it may be because of inverter board.
13 TROUBLE
SHOOTING
Содержание WSAN-YMi 21
Страница 1: ...WSAN YMi 21 81 MANUAL...
Страница 43: ...43 Hydraulic module 5 7 9 kW 12 14 16 kW...
Страница 53: ...53 P 5 7 9 kW 12 14 16 kW...
Страница 112: ...112 1 phase 5 7 9KW 15 ELECTRICAL SCHEMA...
Страница 113: ...113 1 phase 12 14 16kW...
Страница 114: ...114 3 phase 12 14 16kW 15 ELECTRICAL SCHEMA...
Страница 134: ...134 Access by pwd is reserved to qualified personnel The parameters changes may cause malfunctions Structure menu...
Страница 153: ...153 20 CONTROLLER NAVIGATION MENU...
Страница 154: ...154...