mr. steam MS90E - User Manual

Questions and Answers

B
Brittany HernandezAug 16, 2025
What to do if H20 water level is not satisfied within 5 minutes in Mr. Steam Bathroom Fixtures?
- J
  julia42Aug 16, 2025
  If the H20 water level isn't satisfied within 5 minutes in your Mr. Steam Bathroom Fixtures, here's what to check: 1. Ensure the water supply is turned on. 2. Inspect and replace the water solenoid valve if it's defective. 3. Examine and clean the water feed probe, and check its wiring. 4. Make sure the drain valve is closed. 5. Check and replace the AutoFlush if it's not functioning properly.
M
Michael SandersAug 19, 2025
Why does my Mr. Steam Bathroom Fixtures show Err1 Incorrect Field Supply Voltage?
- C
  cbaxterSep 12, 2025
  If you're getting an Err1 error with your Mr. Steam Bathroom Fixtures due to incorrect field supply voltage, ensure the steam generator is supplied with the correct voltage as indicated on the data plate label.
A
arnoldmelissaAug 22, 2025
What to do if Mr. Steam Bathroom Fixtures shows Err2 Button on control is pressed for more than 5 minutes?
- R
  Robert GarciaAug 22, 2025
  If your Mr. Steam Bathroom Fixtures shows Err2 because a button on the control is pressed for more than 5 minutes: * Remove and reinstall the control cover to address potential misalignment. * If there's debris behind the control cover, remove the cover and clean it, the control, and the keypad with a damp cloth.
W
William AustinAug 25, 2025
How to fix Prr1 Temperature Probe Error on Mr. Steam Bathroom Fixtures?
- N
  nicolethompsonAug 26, 2025
  If you encounter a Prr1 Temperature Probe Error with your Mr. Steam Bathroom Fixtures, the following steps can be taken: * Replace the control cable/MSTS if it is cut. * Replace the control/MSTS if there's an internal problem.
R
Richard HallAug 28, 2025
What to do if Mr. Steam Bathroom Fixtures shows Err7 Circuit Board malfunction?
- P
  Patrick ScottAug 28, 2025
  If your Mr. Steam Bathroom Fixtures displays an Err7 Circuit Board malfunction due to a memory error, try pressing the ON/OFF button to clear it. If the code persists, replace the control.
J
Joshua BanksAug 31, 2025
What to do if water level is not satisfied within 5 minutes in mr. steam MS90E?
- D
  Darryl GarciaAug 31, 2025
  If the water level isn't satisfied within 5 minutes, here's what you can check: * First, ensure the water supply is turned on. * Next, inspect and if needed, replace the water feed solenoid. * Then, check and clean the water feed probe and its wiring. * Also verify that the drain valve is closed. * Finally, check or replace the AutoFlush if it's not functioning correctly.
M
mcdonaldshelleySep 3, 2025
Why is my mr. steam MS90E Portable Generator showing incorrect field supply voltage?
- M
  Mark ContrerasSep 3, 2025
  The steam generator might be showing an incorrect field supply voltage because the supplied voltage is not the voltage indicated on the data plate label. Make sure to supply the steam generator with the correct voltage.
J
Jesse WellsSep 6, 2025
What to do if there is memory error in Circuit Board of mr. steam Portable Generator?
- A
  Andrew LopezSep 6, 2025
  If you're seeing a memory error in the circuit board, try pressing the ON/OFF button to clear it. If the error code remains after doing so, the control might need to be replaced.
O
Oscar FischerSep 9, 2025
What to do if there is debris behind control cover of mr. steam MS90E Portable Generator?
- T
  Taylor SosaSep 9, 2025
  If there's debris behind the control cover, remove the control cover. Clean the cover, control, and keypad using a damp cloth.
M
Michelle HowellSep 12, 2025
How to fix control cover misalignment in mr. steam Portable Generator?
- R
  Roger FernandezSep 12, 2025
  To fix a control cover misalignment, remove the control cover and then reinstall it.

This document provides instructions for replacing the PC board in MrSteam MS, MX, CT, and SAH series steam generators. It is a technical guide intended for qualified personnel, emphasizing safety and proper procedure.

Function Description

The document outlines the steps for replacing the main Printed Circuit Board (PC Board) in various MrSteam generator models. This board is the central control unit for the steam generator, managing its operation, accessories, and safety features. The replacement procedure ensures the continued proper functioning of the steam generator.

Important Technical Specifications

The instructions apply to a wide range of MrSteam generator models, including:

MS Series: MS90E, MS150E, MS225E, MS400E, MSSUPER1E, MSSUPER2E, MSSUPER3E
MX Series: MX4E, MX5E, MX6E
CT Series: CT6E, CT9E, CT12E, CT15E
SAH Series: SAH3000, SAH4500, SAH6000

The document highlights specific jumper settings required for generators equipped with Express Steam and MX models. For Express Steam, Jumper 4 must be moved to Position 1. For MX generators, Jumper 6 must be moved to Position 1. Failure to adjust these jumpers can result in equipment damage. The PC board interfaces with various components via a 6-wire cable assembly, green and purple wires (for GND and WLS terminals), and connections for control panels and other accessories.

Usage Features

The primary usage feature described is the PC board replacement itself, which is a maintenance task rather than a user operation. However, the document touches upon aspects that relate to the generator's operation:

Test Button: The PC board includes a "Test Button" which, when pressed, allows the generator to run for 10 minutes. Pressing it again turns the generator off. This feature is crucial for verifying the functionality of the newly installed PC board.
Accessory Integration: The PC board supports integration with various accessories, indicated by the need to unplug and then re-plug all accessories connected to the board during replacement. This suggests the board manages the functions of components like the "Steam Genie" and "AutoFlush" systems, which are visible in the diagrams.
Control Panel Connection: The control panel connects to the right side of the generator, indicating that the PC board facilitates communication and control from the user interface.

Maintenance Features

The document is essentially a maintenance guide, detailing the steps for PC board replacement:

Safety First: Emphasizes the critical importance of shutting off electricity at the main panel before any wiring or servicing. This is a fundamental safety precaution for electrical maintenance.
Qualified Personnel: States that PC board replacement should only be performed after consultation with a MrSteam Technical Service Representative and must be accomplished by a qualified licensed electrician. This ensures the procedure is carried out correctly and safely.
Genuine Parts: Mandates the use of only MrSteam-supplied replacement parts, ensuring compatibility and optimal performance.
Documentation Reference: Directs users to follow all instructions in the Steam Generator Installation, Operation, and Maintenance Manual, available online, for comprehensive guidance.
Step-by-Step Procedure: Provides a clear, numbered sequence of steps for replacement:
1. Turn off the breaker to the steam generator.
2. Unplug all connections from the right side of the generator.
3. Remove the top cover of the generator by unscrewing two screws.
4. Unplug the 6-wire cable assembly from the PC board.
5. Unplug the green and purple wires from the PC board.
6. Unplug all accessories connected to the PC board.
7. Remove the old PC board by using a flat-head screwdriver to push in triangular locking tabs on white plastic standoffs while pushing the board up.
8. Fasten the new PC board to the 8 white plastic standoffs.
9. Plug the green wire to the GND terminal and the purple wire to the WLS terminal on the PC board.
10. Plug in the 6-wire cable assembly to the PC board.
11. Plug in the control to the right side of the generator.
12. Plug in all previously disconnected accessories.
13. Turn on the breaker box.
14. Press the Test Button on the PC board to run the generator for 10 minutes.
15. Press the Test Button again to turn off the generator.
16. Replace the generator's top cover and fasten the two screws.
Visual Aids: Includes figures (Figure 1, Figure 2, Figure 3, Figure 4, Figure 5) to visually guide the user through the process, showing connection points, component locations, and the method for removing the PC board. Figure 3 specifically illustrates wiring for different model series (MS 90E-MS 400E, MS Super 1E-3E and CT6E-15E, SAH3000, SAH4500, SAH6000, and MX 4E-6E), highlighting the consistency in PC board layout across these models.
Jumper Adjustment: Crucially, it warns about the need for jumper adjustments for Express Steam and MX generators to prevent equipment damage, indicating a specific configuration requirement for these models.
Warning and Caution Symbols: Uses "WARNING" and "CAUTION" symbols to highlight potential hazards, emphasizing safety during the procedure. "IMPORTANT NOTE" is used for information critical to a problem-free installation.

Overall, this document serves as a comprehensive, safety-conscious guide for the specific maintenance task of replacing a PC board in MrSteam generators, ensuring that the process is performed correctly and safely to restore the generator's functionality.