It sometimes trippin at set point, but often at freeze guard. The pressures is stable and vaporize is following the water temp as it should do. Nothing uncontrolled. My REFCO 4-way manifold has vapour and liquid scales. Checking the gauges several times per year against a digital reference gauge.
But yeah sure it's flow issues, a colleauge of mine is maybe going to clean the plate exchangers. All depends on the customer.