50 ft Heated Hose, 3/8 in., 2000 PSI, Scuff Jacket & TC

This 50 ft heated hose assembly is designed for spray foam and polyurea equipment using 3/8 in. fluid hose. It is rated to 2,000 PSI and includes a protective scuff jacket for normal job-site handling and thermocouple (TC) temperature sensing.

• Length: 50 ft
• Inside diameter: 3/8 in.
• Pressure rating: 2,000 PSI
• Protection: Scuff jacket
• Temperature sensor: thermocouple (TC)

Important: Confirm the equipment pressure, electrical connections and sensor type before ordering. RTD and thermocouple systems require the correct matching controls and connections.

Graco Reactor E02 & E03 Heated Hose Error Codes

One of the most common Reactor service issues is a hose heat fault. Before replacing an expensive heated hose assembly, several simple checks can isolate the problem.

E02 - High Hose Current

An E02 fault indicates excessive current draw in the hose heating circuit.

Possible causes include:

• Shorted heating element

• Damaged hose wiring

• Water intrusion

• Pinched electrical cable

• Failed hose section

• Faulty electrical connection

Inspect all hose connectors for burned pins, corrosion, or physical damage.

E03 - No Hose Current

An E03 fault indicates the Reactor is not detecting current flow through the hose heating circuit.

Possible causes include:

• Open heating circuit

• Broken hose conductor

• Failed connector

• Disconnected hose section

• Failed transformer

• Tripped circuit breaker

Check Hose Continuity

Disconnect power before testing.

Using a digital multimeter, measure continuity through the hose heating circuit.

The heater wire is the black cable approximately the size of a television or cable cord. The heating element forms a continuous loop through the hose assembly to the whip and back.

Results:

• Continuity present = heater circuit likely intact

• Open circuit = broken connector or failed hose section

• Infinite resistance = failed heating circuit

• Very low resistance = possible short circuit

Isolate Individual Hose Sections

Most heated hose systems consist of multiple sections.

The first 50 feet usually remains in the trailer and experiences very little abuse. Most hose failures occur further down the hose where it is dragged across concrete, lumber, rebar, and jobsite debris.

Disconnect after the first 50-foot section and test, the connect the next 50' - test. Eventually, you'll test and get your fault code.

This can often isolate a failed hose section without replacing the entire hose assembly.

Check Circuit Breakers

Inspect:

• 20 amp hose heat breaker

• 50 amp hose heat breaker

A tripped breaker may indicate a damaged heating circuit or shorted hose section.

Inspect Electrical Connections

Check:

• Hose jumper cables

• Main hose connectors

• Whip hose connections

• Burned pins

• Loose terminals

• Corrosion

Many E02 and E03 faults are caused by poor electrical connections rather than failed hoses. Check the screws on the control boards, I have found some that weren't real loose, but a slight twist with a screwdriver made the difference.

SPF Depot Service Tip

Before purchasing a replacement heated hose assembly:

1. Test continuity.

2. Inspect all connectors.

3. Isolate individual hose sections.

4. Verify TSU operation.

Many hose heat faults can be repaired without replacing the entire heated hose assembly.