Rinnai EX17CT Guida alla risoluzione dei problemi
1 7/21/2017
© 2014 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
Rinnai Direct Vent Wall Furnace
Training Program
Level III –Service Fundamentals
27/21/2017 Rinnai Proprietary & Confidential 27/21/2017 Rinnai Proprietary & Confidential
Rinnai Service and Support (800-621-9419)
CRC –Consumer Response Center –general calls, consumer questions, etc.
Available from 8 a.m. to 8 p.m. EST, Monday –Friday.
Parts Department –parts orders.
Available from 8 a.m. to 8 p.m. EST, Monday –Friday.
Warranty Department –warranty claim issues.
Available from 8 a.m. to 5 p.m. EST, Monday- Friday.
Technical Support Department –technical issues related to the function and repair of Rinnai
products.
Available in the office from 8 a.m. to 8 p.m. EST, Monday –Friday AND 24/7/365 on call support for
technicians who are at the service location. Technicians only, call 1-888-RINNAIS ( 888-746-6247)
Engineering / Applications Department –calls related to product use and applications
including sizing.
Available from 8 a.m. to 5 p.m. EST, Monday - Friday.
Rinnai America also provides the following websites for support:
•www.rinnai.us –for installation manuals, product specifications and supporting documents. More technical information is
available in the “Partner Portal” section of the website. Registration is required for access.
•www.trainingevents.rinnai.us –to register for Rinnai product training live and online classes and videos. Service manuals,
installation manuals and other technical documents are available under the “Resources” section of the site.
3 7/21/2017
© 2014 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
The model & serial numbers will be located on both sides of the product.
The serial number will also be located on the back of the cabinet for some models.
Product model and serial number locations:
Rinnai Model
Number
Factory Model
Number
Serial Number
Label from the back of cabinet.
Serial number format:
First two letters –Year & Month of Manufacture.
Second two letters –Product category & manufacturing facility.
Last six numbers –Production sequence number.
4 7/21/2017
© 2014 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
Primary Service Tools:
For service, troubleshooting, and component replacement, the following primary service
tools will be needed (other tools could be needed on occasion).
#2 Phillips
Head
(magnetic)
Small
Phillips
Head U-
Tube Digital 3/16” Allen Wrench Multimeter
(Volt/Ohm Meter)
Screw Drivers Manometer
and or
Should you need to contact Rinnai technical support please have these tools available to
speed up the troubleshooting process. Also Rinnai needs to know the full model and
serial number, have the front cover removed from the product, provide any relevant
information such as gas pressures, set temperatures, error codes etc. as well as have
utilized the tech sheet and/or service manual to troubleshoot the product as much as
possible prior to the call.
5 7/21/2017
© 2014 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
The following procedures are for
EX17CT / EX22CT
Service Procedures for other models will vary.
PRODUCT DISASSEMBLY AND
COMPONENT REVIEW
6 7/21/2017
© 2014 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
1.Remove the toe kick panel
from the bottom of the
cabinet by pressing inward
on the latches on the left
and right sides.
Disassembly:
2.Slide the humidifier tray
out from the bottom of the
cabinet. The tray can be
completely removed.
1
2
7 7/21/2017
© 2014 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
Front cover removal:
1
2
1. Remove 5 screws from the louver plate on the front cover.
2. Slide the front
panel upwards to
free the side and
top mounting tabs.
1
8 7/21/2017
© 2014 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
Inside front cover:
Inside the front
cover is a ------
a. Wiring diagram.
b. Part name chart.
c. Wire color code
chart.
d. Basic operating
and safety
information.
Should you need to
call Rinnai tech
support for
assistance you can
also record any case
number or other
important data
inside the cover.
9 7/21/2017
© 2014 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
1. Remove the 5 top panel screws.
2. Note the black plastic alignment
piece on the center screw (some
models may have three alignment
pieces on the three middle
screws).
3. Disconnect control panel wiring
from PCB.
4. Pull forward, then up on the top
panel to release the tabs and to
remove the panel.
1
4
Control Panel / top panel removal:
5
3
2
5. The control panel has a
plastic drip pan
underneath it to protect
the PCB from spills on
top of unit.
10 7/21/2017
© 2014 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
1. All current models use a pressure
sensor to ensure there is proper air
movement through the burner, heat
exchanger, and vent system.
2. The pressure sensor snaps into the
PCB case. A pressure sensor is not
included with a replacement PCB. The
existing sensor should be moved to the
new PCB’s casing if it is replaced.
3. The black pressure hose connects on
the front of the sensor.
4. The clear pressure hose connects on
the back of the sensor.
5. On the back of the unit, these hoses
connect to the intake of the vent
system—the black hose connection is
labeled, “BLK”.
6. NOTE: Do not confuse the pressure
sensor hose with the gas valve
pressure balancing hose. The gas valve
hose is a thicker/heavier hose.
Pressure Sensor:
2
3
4
5
6
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