QM QMRF storage heater is cold. Not taking a charge. How do I resolve?

Modified on Tue, 28 Feb 2023 at 10:40 AM

 Applicable to models:  QM050 QM070 QM100 QM125 QM150 QM050RF QM070RF QM100RF QM125RF QM150RF


Issue:  Quantum is cold. No stored heat. Blowing cold air. Not taking a charge.


What this means:  Possible issues -  fuse could have blown in local isolation - products should not be on 13A fused spur for the off peak supply, if this is the case installer to reattend.  Incorrect time temp settings, user to check and reset if necessary.


Action: If determined not an installation or user issue then raise a ticket below.

If possible you should check the following items and if they are not correct you should contact your installer prior to raising a ticket for a service call.


      • Have the trips in your consumer unit switched off?  (switch back on if they have)
      • Check that the switches controlling the supplies to your product are on
        • There should be a switch (unfused) for the off peak supply
        • The continuous supply should not be on a plug
      • Are the supply cables different sizes, off peak supply should be on a 2.5mm2 cable
      • Have you set up the user interface (control on the top of the product correctly?
      • Have you registered your product

Out of guarantee contact your local service found on link below.


Require additional help? Please follow link below


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