Question re: condensate pump on Greenstar 440

[scs4ldb]

Hi,

The condensate pump on my Worcester Greenstar Highflow 440 CDI is flashing green and red simultaneously, halting after a few goes at starting up from power on. Is there anywhere I should be looking for obvious issues ahead of the plumber coming out in a few days?

Thanks, Lou

 

[king of pipes]

Pictures please which brand and model ? the flashing sequence should indicate the problem from a fault finding chart usually found in the installation instructions, these can usually be found online , I would start by looking for obstructions either in the pump itself or in the pipeline existing the pump and where it finally dumps the condense. Kop

 

[scs4ldb]

Pictures please which brand and model ? the flashing sequence should indicate the problem from a fault finding chart usually found in the installation instructions, these can usually be found online , I would start by looking for obstructions either in the pump itself or in the pipeline existing the pump and where it finally dumps the condense. Kop

Hi,
It's a Worcester Bosch Greenstar Highflow 440 CDI. The condensate pump is Bosch. Unfortunately I'm away now, so can't picture. The manual does indeed indicate that dual lights flashing indicates it's trying to run dry. It's accessible from swivelling the PCB and expansion tank, so managed to take a quick look inside yesterday night. What I assume to be the float switch was sat high despite tank being empty, so I guess that's it rather than any blockage etc. I'll let the pro determine whether it can be resurrected/repaired. Cheers!

 

[king of pipes]

Yes it could quite possibly be something as simple as a stuck float switch try freeing it off before getting the engineer in ??