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Service Bulletin G3-26

Models: 715ES, C800ES, 2400ES, 2700ES, Evolution 500, Integra 500

Removing and replacing water valve

Introduction

When replacing the watervalve, it is very important to drain all



water from the water heater beforehand to prevent water

damage to the internal electronics.

Tools needed:

Phillips head screwdriver



Bucket to catch draining water



Plumber's grease



Removing the water valve

1. Press On/Off button to Off and unplug power cord from electrical

outlet.

2. Loosen two Phillips head screws located at bottom rear of cover.

(Fig. 1).

3. Lift front cover upward and remove. (Fig. 1).

Step 1

4. Remove 3 Phillips screws from control unit (Fig. 2, step 1)

4. Place water heater's control unit into the service position.

(Fig. 2, step 2).

Figure 1

5. Close installer supplied inlet and outlet shutoff valves.

6. Relieve water pressure from unit by opening pressure relief valve

on hot outlet side of unit. Have a bucket ready to catch the

draining water. Drain water from unit by removing cold water

inlet connection on bottom of heater.

Step 2

Figure 2

Water

valve

Step 2