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Treadmill

Model # PFHK99900 Official Proform trail runner treadmill

Here are the diagrams and repair parts for Official Proform PFHK99900 trail runner treadmill, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

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ALL PARTS
Showing 10 of 156 parts  |
Treadmill Walking Belt Alignment Tool (replaces 161927) 128457
#65

Foot rail/hand rail/motor diagram

Treadmill walking belt alignment tool (replaces 161927)

Part #128457

This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Treadmill Circuit Breaker, 15-amp (replaces 031103, 127202, 173322) 109382
#39

Foot rail/hand rail/motor diagram

Treadmill circuit breaker, 15-amp (replaces 031103, 127202, 173322)

Part #109382

This item is not returnable
$9.39 | 
10% OFF Phone Price : $10.39
In Stock
Treadmill Power Cord (replaces 031033, 031143, 031147, 247991) 031229
#37

Foot rail/hand rail/motor diagram

Treadmill power cord (replaces 031033, 031143, 031147, 247991)

Part #031229

$11.39 | 
15% OFF Phone Price : $13.39
In Stock
Treadmill Rear Roller 144809
#103

Foot rail/hand rail/motor diagram

Treadmill rear roller

Part #144809

$46.09 | 
10% OFF Phone Price : $51.09
In Stock
Magnet,rnd,m 100498
#13

Foot rail/hand rail/motor diagram

Magnet,rnd,m

Part #100498

Replaced by #113842

?
Manufacturer substitution
This part replaces 100498. Substitute parts can look different from the original.
This item is not returnable
$2.16
Back Order
Guide,belt,l 146077
#5

Foot rail/hand rail/motor diagram

Guide,belt,l

Part #146077

Replaced by #198640

?
Manufacturer substitution
This part replaces 146077. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Treadmill Nut 119425
#36

Foot rail/hand rail/motor diagram

Treadmill nut

Part #119425

This item is not returnable
$2.16
In Stock
Blue Wire 126146

#NI

All parts diagram

Blue wire

Part #126146

This item is not returnable
$2.16
In Stock
Exercise Equipment Screw 135621
#64

Foot rail/hand rail/motor diagram

Exercise equipment screw

Part #135621

This item is not returnable
$2.16
In Stock
Treadmill Power Control Board Support 125819
#61

Foot rail/hand rail/motor diagram

Treadmill power control board support

Part #125819

This item is not returnable
$2.16
In Stock

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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Why won't my treadmill power up?

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

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Why is my treadmill's walking belt off center?

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

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Why won't my treadmill start even though the console display works?

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

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Why is my treadmill's heart rate sensor not accurate?

Main causes: faulty sensors, wiring failure, bad control console…

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Why does my treadmill have no display?

Main causes: bad control console, wiring failure, bad motor control board…

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Why does my treadmill's walking belt slow down?

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

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Why is my treadmill's walking belt slipping?

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

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Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

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How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

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Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking belt

How to replace a treadmill walking belt

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…

Read more
Repair difficulty
Time required
 45 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your fitness & exercise

Use the advice and tips in these articles and videos to get the most out of your treadmill.

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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