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	RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW By Mars, 1 week ago Forum Air Source Heat Pumps (ASHPs)
	That's a very good suggestion. I'd forgotten that we had a similar issue a couple of years ago, but ours was accompanied with an error on the screen that I translated into a flow error. Given the age ...
	RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW By JamesPa, 1 week ago Forum Air Source Heat Pumps (ASHPs)
	It might not be in the manual, mine was a rather innocuous third party 40mmx80mm brass fitting between the heat pump isolation valve and the heat pump itself, on the return. It may of course be someth...
	The Importance of Radiator Balancing for Efficient Heating: Introducing the Flow Regulating Valve By Mars, 1 week ago Forum Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
	It’s fascinating to watch how low-temperature heating is evolving in the UK. For decades, domestic heating has largely been defined by the simplicity and forgiving nature of fossil fuel boilers. Stick...
	RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW By skyefarmer, 1 week ago Forum Air Source Heat Pumps (ASHPs)
	@jamespa Thank you! As soon as it stops raining I will check that out. Looking at manual now.
	RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW By JamesPa, 1 week ago Forum Air Source Heat Pumps (ASHPs)
	I had a very similar problem with my valiant and it turned out to be a blocked filter. Unbeknown to me I have a very fine filter in addition to the mag filter. Heat pump engineer told me this accoun...
	Compressor attempts start but fails - Nibe Fighter 2005 8kW By skyefarmer, 1 week ago Forum Air Source Heat Pumps (ASHPs)
	Hoping someone may have seen this problem before. I have a Nibe Fighter 2005 8kw single phase heat pump which heats a swimming pool. From yesterday it is failing with the following behaviour. Starting...
	RE: Failed install (initial SCOP1.8), clueless installer compounded by poor manufacturer support. Help needed desperately! By Mars, 1 week ago Forum Air Source Heat Pumps (ASHPs)
	@heacol, if you're around, can you please provide some insight into this?
	RE: Failed install (initial SCOP1.8), clueless installer compounded by poor manufacturer support. Help needed desperately! By Mars, 1 week ago Forum Air Source Heat Pumps (ASHPs)
	@bart, I think you're right to focus on that section of MCS MIS 3005-D Issue 2.0, which says: “A heat pump shall be selected that will provide at least 100% of the calculated heat load taking into con...
	RE: Servicing Hitachi HP in rural Somerset By Mars, 1 week ago Forum Air Source Heat Pumps (ASHPs)
	I'd give GreenGenUK a call or email them: sales@greengenuk.com Not sure if they do Hitachi, but a good starting point with a reputable company.
	RE: Failed install (initial SCOP1.8), clueless installer compounded by poor manufacturer support. Help needed desperately! By Bart, 1 week ago Forum Air Source Heat Pumps (ASHPs)
	By way of an update: NAPIT's initial overview is more than a little disconcerting advising that PAS2035/PAS2030 only applies to RIWI/ventilation and concluding that ASHP oversizing and inappropriate u...
	Servicing Hitachi HP in rural Somerset By glpinxit, 1 week ago Forum Air Source Heat Pumps (ASHPs)
	A neighbor is struggling to get someone to service his Hitachi HP. Any suggestions (we are near Wells)? Our Mitsubishi is serviced by its original installer and I will ask them at service time if they...
	RE: Ecodan consuming 100kwh per day in new build!!! By JamesPa, 1 week ago Forum Air Source Heat Pumps (ASHPs)
	@anca1808 I have just reviewed the whole thread. In summary it seems you have several issues (undersized rads, inadequate insulation) which have been identified and fixed, albeit not yet tested becaus...