Power Watchdog Surge Protector Is Showing E6 Error Code After Several Hours Of Use - What Can I Do?

Updated 02/23/2026 | Published 11/29/2023

Products Featured in This Question

Portable Power Watchdog Surge Protector with Bluetooth and Emergency Shut Down - 50 Amp

(994)

$369.99

Question:

Our watch dog has been on a little over 12 hrs. Plugged it in about 5pm and popped up a e6 code at around 10 am next day. Wouldnt that code showed up when we first plugged it in?

asked by: Bob

Expert Reply:

One would think that with the E6 error code on the Power Watchdog # HU87FR, the code would pop virtually right away, and not after being hooked up for several hours. Generally the E6 code is a sign that something is wrong with the plug you are using, and not the watchdog unit. It is possible that something is wrong with the watchdog unit itself. The best way to be sure is to plug the unit in to a different power source and see if you get the same E6 error code. If you continue to get the same error code, you will need to reach out to the manufacturer directly for a warranty replacement.

expert reply by: Jesse M

Michele

2/23/2026

We were at a park and got the E6 code after several days of being plugged in. The electrician for the park said yes indeed it was the park's issue. That leg had some bad wiring and the watchdog saved us. We moved to a different area of this very large park and plugged in the watchdog first, no issue, then plugged in the RV to the Watchdog and it immediately threw the E6 code. I'm thinking the watchdog got burnt and I need to replace the circuit board? How do I test that? We just packed up and went home, now I'm wishing I had grabbed the watchdog and replacement circuit boards.

Jesse M.

2/23/2026

@Michele Generally the E6 code means the plug you're using is wired incorrectly or there is a problem with the power supply at this park. Could be a weak ground. Can you try to plug into the watchdog at a different location and see what happens? If you're certain the pedestal you are using currently is wired correctly and you are still getting the E6 code this does indicate a problem with the circuit board. For the Power Watchdog # HU87FR the correct replacement is part # HU58FR.