CF ChatterFix
Preventive Maintenance

Drying Room Air Handler Filter

The drying room air handler check is the filter, the coil face, the damper, and the drain pan, with the fan off. The technician writes the as-found reading and compares it with the last one on the asset. Do not change a room temperature or humidity setpoint, and do not wedge the damper open. Anything past that line belongs to the site's own procedure, the OEM manual, or a permit. This is the inspection ChatterFix schedules. It is not itself permission to go further.

Interval Every 2 weeks
Est. Duration 1.0 hr
Steps 5
Applies To Cannabis Cultivation & Processing

The Procedure

The steps ChatterFix schedules for this PM. Every step is a checkable item on the work order — a technician can speak their way through it without touching a keyboard.

  1. With the fan off, inspect the filter and the coil face
  2. Confirm the damper moves and the guard is on
  3. Look at the drain pan
  4. Do not change a room temperature or humidity setpoint from this work order
  5. A loaded filter is changed. The setpoint is not 'helped' by wedging the damper

Why This PM Exists

The drying room air handler check is the filter, the coil face, the damper, and the drain pan, with the fan off. The technician writes the as-found reading and compares it with the last one on the asset. Do not change a room temperature or humidity setpoint, and do not wedge the damper open. Anything past that line belongs to the site's own procedure, the OEM manual, or a permit. This is the inspection ChatterFix schedules. It is not itself permission to go further.

What Skipping It Looks Like

A loaded filter stays in and the damper gets wedged because the room is 'a little warm'. The round still closes, the number never lands on the asset, and the next person inherits a guess. Do not change a room temperature or humidity setpoint, and do not wedge the damper open.

Setting the interval

Every two weeks. The filter is what changes. The setpoint does not. An as-found reading outside the limit the site already published is a finding. It does not become a new setpoint on this work order.

Equipment This Covers

Common Questions

How often should this PM run?
Every 2 weeks. Every two weeks. The filter is what changes. The setpoint does not. An as-found reading outside the limit the site already published is a finding. It does not become a new setpoint on this work order.
How long does it take?
Budget about 1.0 hour for a technician working to the standard procedure. ChatterFix uses that estimate for capacity planning, then learns your plant's actual time from completed work orders.
What happens if we skip it?
A loaded filter stays in and the damper gets wedged because the room is 'a little warm'. The round still closes, the number never lands on the asset, and the next person inherits a guess. Do not change a room temperature or humidity setpoint, and do not wedge the damper open.
Can I use this checklist in ChatterFix?
Yes — this exact procedure ships in the Cannabis Cultivation & Processing industry pack. Pick your industry at signup and it is scheduled on the right assets automatically, with no configuration.

Related Procedures

Stop Retyping Your PM Library

This procedure — and every other PM for your industry — is already built into ChatterFix. Pick your industry and it lands on the right equipment, on the right interval, in about three minutes.