Daikin H4 Fault code

[eire1]

Hey all. I'm due at a job in the morning with a Daikin showing a H4. Thanks to this site I found out that it's the Outdoor LP Switch.
Am I ok to loop it out to test to see if the switch itself is faulty?
Thanks

[Grizzly]

Welcome Eire1.

Provided you put your gauges on to confirm you do not have a lp situation.
Logic would say a quick run would not harm.
Grizzly.

[eire1]

Yeah, I'll see what kind of pressure I'm getting. It has to be the gas or switch itself really.
Thanks Grizzly

[james10]

Could be the PCB thats faulty i've had that before

[eire1]

I hope it's not the PCB. Sure I'll find out in the morning.

[install monkey]

h4 -lp fault-ive had transducers fail,also ive got 1 with a lev not opening-not checked it properly yet

[eire1]

No gas in the system at all. Hope this leak isn't too hard to find.