Haier fault code 33
Fault code 33 on an Haier air conditioner (including Multi-Split) means: Suction gas temperature sensor circuit "B" error message. Reset the appliance once. If the code comes back, a part is usually faulty, often a temperature sensor. You can check the water pressure and settings yourself; leave work on gas-carrying parts to a certified gas engineer.
After a safety alert (gas, flue gas, combustion), reset no more than once and call in a certified gas engineer. If you smell gas, call your national gas emergency number or 112 immediately.
Cause
Fault code 33 on an Haier air conditioner indicates: Suction gas temperature sensor circuit "B" error message.
Fixing fault code 33: step by step
- Reset the appliance once; a one-off measuring error will then clear.
- Where you can reach it without opening the sealed combustion section, check that the sensor plug is seated firmly and the wiring is undamaged.
- If the code comes back, the sensor or its wiring is usually faulty (short or open circuit). Sensors in the sealed combustion section should be replaced by a qualified heating engineer.
Applies to
Haier Multi-Split, 3U55S2SR2FA (outdoor unit), 3U55S2SR3FA (outdoor unit), 3U55S2SR5FA (outdoor unit), 3U70S2SR2FA (outdoor unit), 3U70S2SR3FA (outdoor unit), 3U70S2SR5FA (outdoor unit).
Matching parts
Haier parts are available from Instalpunt; shipping to EU countries from €12.95 (€16.95 for more distant countries), usually 3–5 working days.
For fault code 33, the part involved is usually in the category: sensor.
Based on the cause, these original Haier parts fit (always check the type number of your appliance):
- Haier temperature sensor set € 111.68
- Haier liquid line sensor for e.g. 3U70S2SR2FA 0150402454 € 119.06
Further reading on this cause
Other Haier codes with the same cause
- 10 — Outdoor unit defrost temperature sensor error message
- 11 — Outdoor unit suction gas temperature sensor error message
- 12 — Outdoor unit room temperature sensor error message
- 13 — Outdoor unit suction gas temperature sensor error message
- 28 — Liquid temperature sensor circuit "A" error message
- 29 — Liquid temperature sensor circuit "B" error message
Fix it yourself or call an engineer?
Always consult the manual for your appliance and work safely. If in doubt or if the fault comes back, call in a qualified professional. A question about a part? Write to us at info@instalpunt.nl.
Frequently asked questions
What does Haier air conditioner fault code 33 mean?
Suction gas temperature sensor circuit "B" error message.
How do I fix fault code 33 on an Haier air conditioner?
First check the cause described above. Then restart the appliance using the reset button. If the message comes back, a part usually needs replacing or the fault needs to be repaired by a qualified professional.
Which parts do I need for Haier fault code 33?
That depends on the exact cause. In the Haier parts overview at Instalpunt you will find the current price and stock for each part.
Can I fix fault code 33 myself?
You can reset the appliance and check things like the water pressure or settings yourself. Work on gas-carrying parts must be left to a certified gas engineer.
All Haier air conditioner faults and codes at a glance →