Mitsi Thermoscreens over door heater problem

[weidit]

Hi all
Wondering if anyone can help. Trying to commission a vrf system over the weekend!
Everything runs up perfect in heating and cooling except the door heater.

I have fitted a fee over the years but this ones seems a newer model and is a bit
different.

The ones I have done before have a battery heater in (3phase supply)

This one does not require this but it says in the booklet that without the heater battery it makes it a 240vsupply instead.

It's addressed as 5 on the system and has a par30 controller. There was no extra box to wire like on previous models.

The problem I have is it runs with no fault but the fans won't come on, I have doubled
Checked everything and all seems fine.

Anyone have any tips as im unning out of ideas.

Thanks

[weidit]

VRF PHV1500R DXE HO is the model

[Brian_UK]

Don't know the unit but,,, are the fans waiting for the coil temperature to rise?

[weidit]

Don't believe it can be this as in heating/cooling I have the same temperature into fan coils as door heater.
It's from a by box and wired correctly. It's been picked up on the centralised and brings up no faults just doesn't run.

[hyperion]

Check the connections for the fan motor. Seem to remember that we had a problem with the internal wiring and a link that is required and not completely clear on the wiring diagram.