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Bosch Therm C1210ESC Technical Service Bulletin

Removing & replacing the water valve
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Technical Service Bulletin:
Removing & Replacing The Water Valve
Models: C1210ESC, C1210ES, C1050ES, 940ES, 940ESO, 830ES
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
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
Step 2
Figure 2
Water
valve
Step 2
Step 2

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  Summary of Contents for Bosch Therm C1210ESC

  • Page 1 Technical Service Bulletin: Removing & Replacing The Water Valve Models: C1210ESC, C1210ES, C1050ES, 940ES, 940ESO, 830ES Introduction 4. Remove 3 Phillips screws from control unit (Fig. 2, step 1) 4. Place water heater‘s control unit into the service position. When replacing the watervalve, it is very important to drain all (Fig.
  • Page 2 8. Reconnect smaller wire connectors (A) for the water valve and temperature sensor wires. (Fig. 3). 9. Open installer supplied inlet and outlet shutoff valves and inspect for water leaks. Bosch Thermotechnology Corp. 50 Wentworth Avenue Londonderry, NH 03053 Tel: 1-866-642-3198 Fax: 1-603-584-1687 www.boschpro.com...

This manual is also suitable for:

Therm c1210esTherm c1050esTherm 940esTherm 940esoTherm 830es