AWB fault code F 17
Fault code F 17 on an AWB boiler (including ThermoMaster) means: Insufficient mains voltage < 170 V ~ Defective fuse. Check the transformer, fuse and wiring. Replace the transformer if necessary. Defective main PCB. Replace main PCB. Reset the appliance once. If the code comes back, a part is usually faulty. 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 F 17 on an AWB boiler indicates: Insufficient mains voltage < 170 V ~ Defective fuse. Check the transformer, fuse and wiring. Replace the transformer if necessary. Defective main PCB. Replace main PCB.
Fixing fault code F 17: step by step
- Note the exact code and the type of your appliance (see the rating plate).
- Check the water pressure (1.5–2 bar with the system cold) and that the appliance has power.
- Reset the appliance once. If the code comes straight back, do not keep resetting it.
- If the code comes back, choose the matching part below or have a qualified heating engineer take a look.
Applies to
AWB ThermoMaster, 3HR 24 P, 3HR 28 P, 3HR 28 TP.
Fault code F 17 on other AWB series
The same code does not mean the same thing on every series. Check the rating plate to see which series you have:
- F 17 on ThermoMaster, 3HR 28T 035018: Insufficient mains voltage < 170 V ~ Faulty fuse. Check the transformer, fuse and wiring. Replace the transformer if necessary. Faulty main PCB.
- F 17 on ThermoMaster, 3HR 24 035004, 3HR 24T 035014, 3HR 28 035008: Insufficient mains voltage < 170 V ~ Faulty fuse. Check the transformer, fuse and wiring. Replace the transformer if necessary. Faulty main PCB. Replace main PCB.
Matching parts
AWB parts are available from Instalpunt; shipping to EU countries from €12.95 (€16.95 for more distant countries), usually 3–5 working days.
This message does not point directly to one faulty part. These are the parts that most often fit this appliance:
- AWB ignition transformer € 33.98
- AWB fan gasket for e.g. ThermoMaster 3HR 24 A037526.20 € 9.51
- AWB ignition pin gasket set € 62.52
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 AWB boiler fault code F 17 mean?
Insufficient mains voltage < 170 V ~ Defective fuse. Check the transformer, fuse and wiring. Replace the transformer if necessary. Defective main PCB. Replace main PCB..
How do I fix fault code F 17 on an AWB boiler?
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 AWB fault code F 17?
That depends on the exact cause. In the AWB parts overview at Instalpunt you will find the current price and stock for each part.
Can I fix fault code F 17 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 AWB boiler faults and codes at a glance →