PURY-P200-YMF-C 5301 Fault Code

[woody100]

Hello,

I am getting a 5301 fault on a Mitsubishi PURY-P200-YMF-C unit. Having spoken to Mitsi tech and read some of the previous posts on the site I checked the CTs for direction (as instructed by Mitsi)
which checked OK and then checked the output from the inverter with inverter SW1 - 1 in the on position and SW3 - 1&2 in the on position. The reading was balanced but only 26v per phase. Is this normal as I'm sure the tech team said it should be a minimum of 90V. The system was left in test mode for 4-5 minutes and the condenser fan was running

[CraigF]

That voltage does seem low, they do usually expect 90v balanced. Id be back on the phone asap.