Eco Heating Systems fault code 136
Fault code 136 on an Eco Heating Systems boiler (including CB) means: Water temperature is higher than 90 ⁰C. 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 136 on an Eco Heating Systems boiler indicates: Water temperature is higher than 90 ⁰C.
Fixing fault code 136: 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
Eco Heating Systems CB, 105 CH, 125 CH, 155 CH, 85 CH.
Matching parts
Eco Heating Systems 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. If the code keeps coming back, view the Eco Heating Systems parts:
All Eco Heating Systems parts →
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 Eco Heating Systems boiler fault code 136 mean?
Water temperature is higher than 90 ⁰C..
How do I fix fault code 136 on an Eco Heating Systems 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 Eco Heating Systems fault code 136?
That depends on the exact cause. In the Eco Heating Systems parts overview at Instalpunt you will find the current price and stock for each part.
Can I fix fault code 136 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 Eco Heating Systems boiler faults and codes at a glance →