Sharp WH-A55 - User Manual

Questions and Answers:

B
Brian HarringtonAug 6, 2025
Why is my Sharp WH-A55 Water Heater water not hot?
- T
  Troy MillerAug 6, 2025
  Several factors can cause your Sharp Water Heater to not produce hot water. It could be due to a heater tank assembly shock or low water pressure, in which case you should replace the heater tank assembly and check the water pressure from the main water valve. Another cause might be a tripped thermostat, requiring a reset. A defective volume switch or reed switch could also be the culprit, necessitating their check or replacement. Lastly, a defective PCB control assembly might be the cause, requiring its replacement.
A
Andrea LunaAug 14, 2025
What to do if water flow out from Sharp WH-A55 Water Heater shower assembly is too low?
- C
  Cynthia SmithAug 14, 2025
  If the water flow from your Sharp Water Heater shower assembly is too low, it could be due to a clogged O-ring, which needs checking and cleaning. Alternatively, the shower assembly itself might be clogged and require cleaning. Also, ensure that the main water valve is sufficiently open to increase water flow.
J
Jessica CantrellAug 21, 2025
Why water temperature can not be set on my Sharp WH-A55 Water Heater?
- C
  Cole ScottAug 21, 2025
  If you're unable to set the water temperature on your Sharp Water Heater, the issue might stem from a defective PCB control assembly, which would need replacing. Another potential cause is a defective volume switch, which should be checked or replaced.
E
Erik DavisAug 29, 2025
What to do if water is not flow out from Sharp WH-A55 shower assembly?
- M
  Morgan CervantesAug 29, 2025
  If water isn't flowing from your Sharp Water Heater shower assembly, check if the main water valve is closed and open it. Also, ensure the water volume is not closed; open it if it is.

Sharp WH-A55 Specifications

General

Brand	Sharp
Model	WH-A55
Category	Water Heater
Language	English

Summary

Electric Water Heater Overview

Supported Models

Lists the specific electric water heater models covered in the manual.

Parts Identification and Specifications

Component Identification

Visual identification of the main parts of the electric water heater.

Technical Specifications

Key technical data including voltage, power, pressure, dimensions, and IP rating.

External Dimensions and Safety Precautions

Product Dimensions

Provides front and side views with key physical dimensions.

Usage Cautions

Important safety guidelines and warnings for operating the water heater.

Operating Instructions

Pre-operation and Basic Use

Steps to follow before using the heater and basic operation procedures.

Adjusting Water Temperature

Details on how to use the temperature and volume knobs for desired settings.

Installation Advice

Water Pressure and Wiring Diagram

Requirements for water pressure and the unit's wiring schematic.

Installation Procedures

Unit Mounting and Cover Assembly

Procedures for physically attaching the unit to the wall and reassembling the cover.

Shower and Piping Installation

Shower Head and Hose Assembly

Instructions for connecting the shower head, joint, and hose.

Water Inlet and Outlet Piping

Steps for connecting the water inlet and outlet pipes to the unit.

Electrical Connections

Main Power Wiring

Instructions for connecting the unit to the main breaker board.

Wire Connection Methods

Details on connecting wires to the unit's terminals and proper tightening.

Grounding and Shower Set

Grounding Procedures

Detailed steps for installing a ground rod and ensuring proper grounding resistance.

Shower Head Types

Description of the different shower head spray types (Jet, Comfort, Spray).

Main Parts Replacement

Removing the Shower Hose

Manual procedure for detaching the shower hose from the unit.

Removing the Main Body Cover

Steps to remove the outer casing and access internal components.

Component Replacement: Triac and Reed Switch

Replacing the Triac Component

Instructions for removing and replacing the Triac.

Replacing the Reed Switch

Steps for removing and replacing the reed switch assembly.

Component Replacement: Valve and Heater Tank

Replacing Body Valve and Water Outlet

Procedure for removing the body valve assembly and water outlet.

Replacing the Heater Tank Assembly

Steps for removing the heater tank assembly.

Component Replacement: PCB and Volume Switch

Replacing the PCB Control Assembly

Steps for removing and replacing the main printed circuit board assembly.

Replacing the Volume Switch Assembly

Procedure for removing and replacing the volume control switch assembly.

Component Replacement: Breaker

Replacing the Breaker Component

Steps for removing and replacing the circuit breaker.

Troubleshooting and Lamp Replacement

Replacing the Neon Lamp Assembly

Procedure for removing and replacing the neon indicator lamp assembly.

Common Problems and Solutions

Lists common issues like no hot water, temperature setting, and low flow with their causes and fixes.

Circuit Diagram

Power and Control Side Schematic

Detailed circuit diagram for the PCB control and power supply side.

Service Parts List - WH-A55

Printing & Packaging Material (WH-A55)

List of printing and packaging components for the WH-A55 model.

Service Parts List - WH-A57

Mechanical Parts (WH-A57)

List of mechanical components for the WH-A57 model.

Service Parts List - WH-A58 P

Mechanical Parts (WH-A58 P)

List of mechanical components for the WH-A58P model.

Service Parts List - WH-HOT HOT

Electric Parts (WH-HOT HOT)

List of electrical components for the WH-HOT HOT model.

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