Bosch GWH 1600 H User Manual

Service Bulletin Booklet
For Compact model water heaters
GWH 260 PN, GWH 425 PN, GWH 425 HN
GWH 1000 P, GWH 1600 P, GWH 1600 H

Bosch GWH 1600 H Specifications

General

Brand	Bosch
Model	GWH 1600 H
Category	Water Heater
Language	English

Summary

Thermocouple and Pilot Test

Pilot Flame Issues

Troubleshooting steps for pilot flame problems, including failure to stay lit and going out during use.

Checking Gas Pressure

Gas Pressure Testing Procedure

Steps for connecting a manometer and performing static and operating pressure tests.

Negative Air and Freeze Prevention

Negative Air Conditions and Testing

Overcoming Fluctuating Temperatures

Removing and Cleaning Burners

Pilot Assembly Removal and Installation

Burner Removal, Cleaning, and Reinstallation

Replacing Heat Exchanger

Heat Exchanger Removal and Installation

Step-by-step guide to remove and install the heat exchanger.

Cleaning and Replacing Pilot Assembly

Pilot Tube and Orifice Servicing

Water Valve Rebuild

Water Valve Rebuild Process

Preparation, removal, disassembly, reassembly, installation, and testing of the water valve.

Replacing ECO/Temperature Limiter

Replacing ECO/Temperature Limiters

Procedures for replacing upper and lower ECO/temperature limiters.

Replacing Electro-Magnet

Electro-Magnet Replacement

Replacing Electro Valves

Electro Valve Replacement

Replacing Control Box

Control Box and Ignition Unit Replacement

Replacing Thermocouple and Flue Sensor

Thermocouple and Flue Sensor Servicing

Procedures for removing and installing the thermocouple and flue sensor.