Failure Code - Inverter 75068 Installations- Und Benutzerhandbuch

4. Failure code

NO. Display
1 E1
2 E2
3 E3
4 E4
5 E5
6 E6
7 E7
8 E8
9 EA
10 Eb
11 Ed
12 P0
13 P1
14 P2
15 P3
16 P4
17 P5
18 P6
19 P7
20 P8
21 P9
22 PA
23 F1
24 F2
25 F3
26 F4
27 F5
28 F6
29 F7
30 F8
31 F9
32 Fb
High pressure protection
Low pressure protection
No water protection (not failure)
3 phase sequence protection (three phase only)
Not failure, power supply excesses operation range
Excessive temp difference between inlet and outlet
water(Insufficient water flow protection)
Water outlet temp too high or too low protection
High exhaust temp protection
cooling coil pipe(heat exchanger)overheat protection
Ambient temperature too high or too low protection
Anti-freezing reminder (not failure )
Controller communication failure
Water inlet temp sensor failure
Water outlet temp sensor failure
Gas exhaust temp sensor failure
Cooling coil pipe (heat exchanger) temp sensor failure at
cooling mode
Gas return temp sensor failure
Heating coil pipe (evaporator) temp sensor failure
Ambient temp sensor failure
Cooling plate temp sensor failure
Current sensor failure
Restart memory failure
Compressor drive module failure
PFC module failure
Compressor start failure
Compressor running failure
Inverter board over current protection
Inverter board overheat protection
Current protection
Cooling plate overheat protection
Fan motor failure
Capacitor & power filter plate No-power protection
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For installers and professionals
Failure description