Brand: Haier
Category: Ovens
Document Type: Parts/Service
Language: EN
Parts/Service for 90cm BUILT-IN OVEN
Uploaded: Nov. 21, 2025, 6:42 p.m.
The service manual provides comprehensive guidance for the Haier 90cm Built-In Oven. It covers safety warnings, technical specifications, mounting and installation rules, component operating principles, and detailed failure flow/diagnostic diagrams for various issues. The manual also includes step-by-step procedures for replacing specific components such as heating elements, thermostats, motors, lamps, and electrical parts, along with an electrical scheme and cable selection table to assist service technicians.
Troubleshooting and error codes
| FAILURE | SYMPTOM | POSSIBLE CAUSE | SOLUTION |
|---|---|---|---|
| TIME CLOCK FAILURES | Time Clock Is Not Running | Mains cord not connected to power supply. | Connect oven to power. |
| Electrical connection function failed. | Customer must have the connection repaired or find a suitable power supply. | ||
| Clock cables not fitted on the place. | Locate the dislocated cables. | ||
| Clock does not run directly through terminal connection. | Replace the clock. | ||
| Time Clock Is Running But Not Commanding While Thermostat Is Enabled | Clock cables not checked. | Fit the outlet cables. Replace the defective cables. | |
| Thermostat lamp function failed. | Check the lamp. | ||
| Thermostat function failed. | Replace the thermostat. | ||
| Switch function failed. | Replace the switch. | ||
| Clock malfunction. | Replace the clock. | ||
| HEATING ELEMENT FAILURES | Heating Is Not Functioning, Foods Cannot Be Cooked | Electrical connection function failed. | Customer must have the connection repaired or find a suitable power supply. |
| Fuse blown. | Check the connections according to the circuit diagram. | ||
| Thermostat not enabled. | Set the thermostat to the desired temperature. | ||
| Heating element cable connection not fully made. | Disconnect the mains cord and check the connections according to the circuit diagram. | ||
| Heating element is not OK. | Replace the heating element. | ||
| Switch is not OK. | Replace the switch. | ||
| Clock is not OK. | Replace the clock. | ||
| LAMP FAILURES | Oven Is Operating But Oven Lamp Is Not Lit | Electrical connection function failed. | Customer must have the connection repaired or find a suitable power supply. |
| Bulb not tightened. | Tighten the bulb. | ||
| Bulb is not OK. | Replace the bulb. | ||
| Cables are not OK. | Replace the cables according to the circuit diagram. | ||
| Switch is not OK. | Replace the switch. | ||
| Oven Is Not Operating Nor Oven Lamp Is Lit | Switch is not OK. | Replace the switch. | |
| Bulb not tightened. | Tighten the bulb. | ||
| Bulb is not OK. | Replace the bulb. | ||
| Cables are not OK. | Replace the cables. | ||
| THERMOSTAT FAILURES | Oven Is Operating Continuously, Thermostat Does Not Break the Circuit | Electrical connection function failed. | Customer must have the connection repaired or find a suitable power supply. |
| Thermostat does not enable the heating element. | Disconnect the mains cord and check the cable connections. | ||
| Oven operating continuously and thermostat not breaking the circuit. | Replace the thermostat. | ||
| Thermostat function failed. | Check where the thermostat bulb is located. | ||
| TURBO MOTOR FAILURES | Oven Is Not Operating In Turbo Motor Mode, No Cooking Is Made | Electrical connection function failed. | Customer must have the connection repaired or find a suitable power supply. |
| Cables are not OK. | Replace the cables according to the circuit diagram. | ||
| Switch is not OK. | Replace the switch. | ||
| Switch command failed in fan mode. | Check the switch end connections. | ||
| Fan motor is not OK. | Replace the motor. | ||
| SWITCH FAILURES | Switch Is Not Functioning, Oven Cannot Cook. | Electrical connection function failed. | Customer must have the connection repaired or find a suitable power supply. |
| Cable connections are not OK. | Compress the cables. | ||
| Cables are not OK. | Replace the cables according to the circuit diagram. | ||
| Heating element controlled by the switch is not OK. | Replace the heating element. | ||
| Switch is not OK. | Replace the switch. | ||
| TERMINAL FAILURES | Electricity Is Not Received by the Terminal or Not Distributed In the Oven | Electrical connection function failed. | Customer must have the connection repaired or find a suitable power supply. |
| Mains cord is not OK. | Replace the mains cord. | ||
| Cables are not OK. | Replace the cables according to the circuit diagram. | ||
| Terminal is not OK. | Replace the terminal. |