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Gaztech, HVAC Technician
Category: Pool and Spa
Satisfied Customers: 455
Experience:  Owner at Gaztech
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I am having an issue with my Jandy LRZ heater the message

Customer Question

I am having an issue with my Jandy LRZ heater the message says Fault then Fuse Link /Field. I have replaced the fuse link and the message still comes up. when I adjust the temp below the current water temp the message goes away. as soon as I try to put it above the message comes back on?
JA: I'll do all I can to help. Is there anything else important you think the Pool Technician should know?
Customer: I was working until about 77 degrees then it was trying to turn on and shut down after about 20 -30 seconds at the start then this message came up
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Pool Technician about your situation and then connect you two.
Submitted: 1 year ago.
Category: Pool and Spa
Expert:  Gaztech replied 1 year ago.

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FAULTFUSELINK/FIELD-can also be a vent temperature limit fault. Identify and correct loose connections or replace vent temperature limit.

Shut off power to unit, the On the control board try bypassing the 2 lowpress/fuselink terminals , turn power on and see if unit goes back to normal. this will confirm that the vent switch is also bad or bad connection

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