Air Source Heat Pump Servicing Costs

[GasEngineer]

What are people paying for an annual Heat Pump service?

There is less to do than a gas boiler service but it seems that companies are charging more than a gas boiler service would cost (£80-£100).

[normalbloke]

£60

[M1AGM]

Following, just because I'm interested in what goes into servicing an ASHP. Looks like a few squirts of wd40 and checking the bearings?

[Danns]

Have posted before
I was being charge north of £200 + vat annually to preserve the 3 year warranty.

Check glycol concentration
Remove covers and clean
Check functional operation

All in around 30 min of work when I watched the chap do it.

Ditched after one year, 5 years on, still working fine and I give it my own annual service.

I also know the glycol to be somewhere between 0 and 0.001% so don’t really need that confirming 😋


(Realistically, and I’ll get shot down for this.. You don’t need glycol if, outdoor pipes are well lagged, you run it in the winter, don’t leave it tuned off for extended periods when sub zero and have an alternative way of powering the circulation pumps in the event of ridiculously long power cut)

[gmaz]

£108 per year for Octopus Cozy 6, water cylinder, piping and electrics.

It covers repairs, parts and annual service.

[Black_S3]

Danns said:

(Realistically, and I ll get shot down for this.. You don t need glycol if, outdoor pipes are well lagged, you run it in the winter, don t leave it tuned off for extended periods when sub zero and have an alternative way of powering the circulation pumps in the event of ridiculously long power cut)

You wont get shot down for that by anyone who knows what theyre talking about... Glycol is a pain in the arse and much better ditched in favour of antifreeze valves. Less stress on the pump and the lack of glycol means lower viscosity which improves the all important flow rates.

[Cheib]

Check your warranty terms…the warranty on mine requires readings taken by the service engineer to be submitted to the manufacturer to maintain the warranty.

[Tlandcruiser]

£150 with Eon

[caziques]

An air to air heat pump needs the filters cleaning reasonably regularly.

As for air to water units, servicing the unit itself is a scam. Nothing can be done that will prevent anything going wrong (OK, check the coil isn't covered in leaves or other crap)

The water system is a different scenario. Unless you have no ferrous materials, water treatment is required - and any expansion vessels need the air pressure checking every year or two.
It's preferable not to have antifreeze, water has better properties. AFAIK all units switch the circulating pump on for a few minutes when the temperature is low.

Went to an underfloor system a couple of days ago - hadn't been looked at for ten years. Needed some water and the expansion vessel may have failed.

[GasEngineer]

M1AGM said:

Following, just because I'm interested in what goes into servicing an ASHP. Looks like a few squirts of wd40 and checking the bearings?

It is basically giving it a clean including all the fins and the fan blades, checking the condense pipework, checking the antifreeze valves, checking for rodent damage. May also include checking the unvented hot water cylinder (as may be done on a gas boiler service).

Could also include (but this isn't really servicing) checking the stats for running times and power usage, compressor runtime etc and tweaking settings if necessary.

[GasEngineer]

Danns said:

(Realistically, and I ll get shot down for this.. You don t need glycol if, outdoor pipes are well lagged, you run it in the winter, don t leave it tuned off for extended periods when sub zero and have an alternative way of powering the circulation pumps in the event of ridiculously long power cut)

Glycol can cause problems. As Danns says proper insulation of the pipework makes it unnecessary.

[g7jtk]

M1AGM said:

Following, just because I'm interested in what goes into servicing an ASHP. Looks like a few squirts of wd40 and checking the bearings?

And checking the fluid pressure and air pressure in the expansion vessel, safety valve, the frost protection level of the fluid along with the general condition and operation of the system.

[diver944]

Mitsubushi Ecodan ASHP fitted 7 years ago. The installer said they didnt need routine servicing, so it hasn't had one. I keep the fan clean myself. Mitsubishi want £230 a year so I've saved £1600 so far and hopefully the first breakdown will cost less than that