Toshiba HWT-1101XWHT9W-E User Manual

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Model name:

Outdoor unit

HWT-401HW-E(TR)

HWT-601HW-E(TR)

HWT-801HW-E(TR)

HWT-1101HW-E(TR)

HWT-801HRW-E

HWT-1101HRW-E

AIR TO WATER HEAT PUMP

Hydro unit

-Wall Mounted Type-

HWT-601XWHM3W-E(TR)

HWT-601XWHT6W-E(TR)

HWT-1101XWHM3W-E(TR)

HWT-1101XWHT6W-E(TR)

HWT-1101XWHT9W-E(TR)

Service Manual

FILE No. AE0-2101W

Table of Contents

Other manuals for Toshiba HWT-1101XWHT9W-E

Installation Manual40 pages

Questions and Answers:

A
Amy BondAug 9, 2025
What to do if my Toshiba HWT-1101XWHT9W-E room is not heated or cooled properly?
- J
  Jackie ThompsonAug 9, 2025
  If your Toshiba Heat Pump isn't heating or cooling the room adequately, or the water isn't hot enough, there might be several reasons: * The remote controller settings may be incorrect. Check the operation and temperature settings. * The function code setting could be wrong. Verify it using the function code table. * The backup heater might be disconnected. Inspect the backup heater and bimetal thermostat. * The unit might have insufficient capacity. Review the equipment selection. * A temperature sensor may be defective or not properly positioned. Ensure the temperature sensor is correctly installed.
G
gfisherAug 15, 2025
What to do if nothing is displayed on the Toshiba Heat Pump remote controller?
- J
  Joshua RobinsonAug 16, 2025
  If nothing is displayed on your Toshiba Heat Pump's remote controller, check the following: * Verify the power supply wiring. * Check the setting with the DN codes.
C
Charles LeachAug 21, 2025
What to do if my Toshiba HWT-1101XWHT9W-E has almost no or little water flow and shows error code [A01]?
- J
  Joseph CalderonAug 21, 2025
  If your Toshiba Heat Pump exhibits little to no water flow and displays error code [A01], consider the following: * There may be an air bite in the pump. Release the air completely, following the correct procedure. * The hydraulic pressure may be low. Set the hydraulic pressure appropriately, considering the pipe height, and replenish water until the manometer shows the set hydraulic pressure or more. * The strainer might be clogged. Clean the strainer. * There could be large resistance on the hydro side. Widen the water path to the Hydro Unit or adopt a bypass valve. * The motorized 3-way valve for hot water supply might be malfunctioning. Check the wiring and parts.
K
Kelsey WestAug 28, 2025
Why is hot water leaking from the overpressure preventive valve of my Toshiba HWT-1101XWHT9W-E Heat Pump?
- C
  Christie OrozcoAug 28, 2025
  Hot water leaking from the overpressure preventive valve of your Toshiba Heat Pump can be due to: * Excessive hydraulic pressure. Set the hydraulic pressure considering pipe height and replenish water until the manometer shows a value of set hydraulic pressure or more. * Insufficient capacity of the expansion tank. Check the expansion tank capacity compared to the total water amount; if it's insufficient, install another expansion tank. * Expansion tank failure. Check the air pressure.
B
Bruce OchoaSep 2, 2025
How to fix a Toshiba HWT-1101XWHT9W-E pump lock with error code [A14]?
- C
  Christopher MorrowSep 2, 2025
  If your Toshiba Heat Pump's pump is locked and displays error code [A14], it may be due to pump lock caused by dust clogging. To unlock it, insert a Phillips screwdriver into the hole and turn it to the left or right.

Toshiba HWT-1101XWHT9W-E Specifications

General

Brand	Toshiba
Model	HWT-1101XWHT9W-E
Category	Heat Pump
Language	English

Summary

Definition of qualified installer or qualified service person

Warning indications on the Air to Water Heat Pump

Explains warning labels and their meanings for safe operation.

Precaution for safety

Outlines essential safety precautions for appliance installation and maintenance.

Specifications

Refrigerant (R32)

Safety during installation / servicing

Crucial safety precautions for handling R32 refrigerant during installation and servicing.

Refrigerant piping installation

Guidelines for installing refrigerant piping, including materials and joints.

Processing of piping materials

Procedures for preparing piping materials, including flaring.

Recharging of refrigerant

Step-by-step guide for recharging the system with the correct refrigerant amount.

Brazing of pipes

Information on materials and methods for brazing refrigerant pipes.

Brazing

Describes the proper techniques for brazing to prevent oxidation.

Instructions for re-use piping of R22 or R407C

Guidelines for reusing existing R22/R407C piping for R32 systems.

Recovering refrigerant

Charging additional refrigerant

General safety precautions for using R32 refrigerant

Recovery

Safe practices for recovering R32 refrigerant from systems.

Decommissioning

Procedures and safety measures for decommissioning the unit.

Operational description

Operation Mode and Control Method

Details various operating modes and control logic for the system.

Hydro Unit Control

Explains the control functions and operations specific to the hydro unit.

Outdoor unit control

Explains the control functions and operations specific to the outdoor unit.

Method of defect diagnosis

Matters to be confirmed first

Initial checks to perform before diagnosing defects in the heat pump system.

Outline of the determination diagram

Provides a flowchart for identifying defective parts based on symptoms.

Diagnosis flow chart for each error code

Detailed diagnostic flowcharts for various error codes detected by the hydro unit.

Frost protection Setting

Anti bacteria Setting

Hot water boost Setting

Forced Defrosting Setting

Failure History Calling Function

Outdoor Unit Setting

Refrigerant recovery control

Steps for performing refrigerant recovery operation on the outdoor unit.

Service support functions (LED indication, Switch operation method)

Explains LED indicators and switch functions for service operations.

LED indication switching

Replacement of the service PC board

How to exchange main parts

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