This question is regarding
Mira Sport Max Shower Spares
When on medium or high power, after a few minutes the overheat light comes on and the shower goes cold, after about 20 secs light goes off and heat comes back on, but then it cycles through the same fault over and over. The water flow is good.
I am assuming it could be a faulty thermal switch, are there other possibilities?
5 years ago
The things to check first are:
1 That the main valve coming into your house is fully open.
2 Then check that the valve on the line to the shower is fully open.
If these valves are not fully open then there may not be enough water getting to your shower to cool it properly the overheat safety device will turn the power off until it cools Then it all starts again
Make sure that the shower head is clean and clear, that the hose isn’t kinked (this can happen just behind the hand set where it is difficult to see) also check the inside of the hose although it can look OK on the outside it could have collapsed internally
The other possibility is a faulty flow/stabilizer valve not allowing the correct amount of water into the shower.
A rough check is to remove the shower head turn temperature control to fully hot the water coming out of the hose should be a bit more than a dribble then turn to fully cold and it should be coming out at full flow.
If there is not much difference between the two then you could have a faulty flow valve.
Carry out this check after you check the inlet valves.
5 years ago